Paper-bag machine.



(No Model.)

No. 635,090. Patented Oct. I7, |899.

` E. E. CLAUSSEN G. MOBTSUN.

PAPERBAG MACHINE.

(Application led June 17, 1899A 8 Sheets-Sheet `2.

(Nc Model.)

| l ll 1 u I l MMMMMHH L J l N 1 l l l null 0 I l. a l l ."1 Il f rIJIIIII @I @NN 1 ww SPN mNN r -..L Nw NNN itil! .hun Ufo o u L YL'nesses' E Nonrus Pnzns co.. Puuroumn. wnsuworcm n c No. 635,090,Pafented ont. I7, |899. E. E. CLUSSEN & G. MURTSN.

PAPER BAG MACHINE.

(Application filed June 17, 1899.) (No Model.) 8 Sheets-#Sheet 3.

fev.

Invenor's N0. 635,090. Patented Oct. I7, |899. E. E. CLAUSSEN & G.MRTSON.

PAPER BAG MACHINE.

` (Application filed-June 17, 1899.)

8 Sheets-Sheet 4 (No Model.)

///VW// ///////7////V7 N D2 z/ezors 2 Y L' Z'Zlzesses:

Q. CQM

No. 635,090. Patented Oct. I7, |899. E. E. CLAUSSEN & G. MORTSON.

PAPER BAG MACHINE.

v (Application led June 17, 1899.)

8 Sheets-Sheet 5,

"(No Model.)

Patented om. |7,'ls99. E. E. cLAussEN & G., MnRTsoN.

`PAPER BAG MACHINE. (Application med June 17, i899.)

(No Model.)

TH: Nonms Pcrzns co. PHoTo-Llruu, WASHINGTON. D, c,

N0. 635,090. 4 Patented Oct. I7, |899. E. E. CLAUSSEN &. G. MORTSN.

PAPER BAG MACHINE.

Application filed June 17', 1899.)

8 Shets-Sheet 7, j.

(NO Model.)

J Z'Z TN: mams PETERS m. Primo-urne.. wAsHlNnmN. u. c

No. 635,090. Patented Oct. I7, i899. E. E. CLAUSSEN & G. MORTSON.

l PAPER BAG MACHINE.

(Application flied June 17, 1899.) (Nn Model.) 8 Sheets-Sheet 8,

Elly 18.

UEITTEE STATES PATENT @Erica EDVARD E. OLAUSSEN AND GEORGE MORTSON, OFIIARTFORD CONNECTICUT.

PAPERS-BAG. MACHINE.;

SPECIFICATION forming part or Letters Patent No. 635,090, dated october17', '1899. Application led June 17,1899 Serial No. 720,926. (No model.)

To all whom it may concer/2,:

Be it known that we, EDWARD E. CLAUS- SENV and GEORGE MoRTsoN, citizensof the United States, residing at Hartford, in the county of Hartfordand State of Connecticut, have invented certain new and usefulImprovemen ts in Paper-Bag Machines, of which the following is a full,clear, and exact specification.

This improvement is particularly applicable to such paper-bag machinesas that shown in Letters Patent granted to Edward E. Claussen, No.598,497, patented February 8, 1898, and also applicable to such amachine as shown in Letters Patent granted to GeorgeMortsomNo.614,l23,datedNovember15,l898; and it consists, principally,inimproved mechanism for aiding the formation of the diamond when thetucked paper blank is unfolded and refolded into the diamond form.

One object of this invention is to provide a mechanism whereby theleading end of the diamond is formed at an exact predetermined positioninto accurate proportions, as it is obvious that any distortion orirregular formation will rapidly multiply to such an extent as to makethe bag useless and perhaps stop the machine entirely.

Another object of our invention is to provide means, consisting of theironing-plate, to press and flatten the bag by the oscillatingironing-plate upon the folding-bed and the vibrating tucker-plate.

Another object of this invention is to provide means whereby the rearflap is folded over upon the bag-bottom by a positive iechanism and at arapid speed.

In our present invention the preferred embodiment herein shown anddescribed in a paper-bag machine comprises in part a suitable bedorframework for supporting the various operative parts of the machine,means for drawing the tucked-paper tube into the machine, a vibratingtucker-plate provided with bevel-edged side nippers trunnioned instationary frames and arranged to vibrate above the tubular blank insuch a manner that as the bottom-forming end of the tube passes alongbeneath the same the beveledged side nippers swingV into the tucks ofthe tube and clasp and hold firmly the upper ply of the tube to thesucker-plate. Ooacting with the tucker-plate is the supplemental carrierarranged and operating below the tubular blank, which is `pivoted to theconveyerand provided with a pair of bevel-edged side clips adapted toswing into the tucks of the tube and hold the lower ply of the blank tothat carrier, a front clip adapted to hold the front end of the bag tothe carrier, means for starting and forming at predetermined points thefront end of the diamond form, consisting of a diamond linger mounted onthe front clip and adapted to swing into the bottom-forming end of theblank during the unfolding of the same and the refolding into thediamond form and adapted to swing out of operative adjustment as soon asthe diamond is completed, means for flattening the diamond form on thefolding-bed and the tucker-plate, means for turning the first fold overon the bag-bottom, consisting of a finger adapted to be thrustcrosswiseof the foldingbed and behind the flap and to swing over the surface ofthe cylinder, whereby the rear flap is turned over on the bag-bottom andthen returned to its normal position, and a folderblade to fold over thesecond nap, all as will be hereinafter described, and more particularlypointed out in the claims.

The reference-numerals herein used indicate, respectively, the sameparts in the different iigures of the drawings. The arrows indicate,without further description, the direction of movement of parts. i

f In the accompanying drawings the various instrumentalities are shownin their most ad- Vantageous position, irrespective of therelativeposition which these parts may have to their respectivecam-grooves, and the sameis true of all parts hereinafter mentioned, itbeing considered sufiicient 'for the purpose of this description toassume that the cams are properly cut to effect the various operationsrequired at the proper times and to the required extent.

The machine as herein shown and described employs two supplementalcarriers oscillating upon the cylinder; but it is obvious that onesupplemental carrier or more than two Ioo a larger size of bag.

omitted in Fig. 1.

can be arranged for, or it is equally Well adapted to the machinedescribed in the previously-cited Patent No. 614,123.

The invention will best be understood as described in connection withthe drawings, in which it is illustrated, and in which- Figure 1 is aright-hand side elevation of the machine, taken on the line 1 1 of Fig.2 and showing the paper blank gripped by the forming mechanism and at astage where the folding is about to begin and having all the mechanismsin the rear omitted. Fig. 2 is a front elevation of what is shown inFig. 1. Fig. 3 is a side elevation of the machine, taken on the brokenline 3 3 of Fig. 2 and representing the mechanisms which were Fig. 4 isa cross-sectional rear end view of Fig. 1 on the broken line 4 4 of Fig.1 and is shown partly in section and partly in full view. Figs. 5 and 6are respectively fractional side and rear end views of the rearflap-folder mechanism. Figs. 7 and 8 are respectively plan and end viewsof a modified form of the diamond lingers and their operating mechanism.Figs. 9, 10, and 11 are respectively a plan, an end, and a side view ofa modification of the diamond fin gers and their operating mechanism,showing the same in the way they are mounted, whereby they are adaptedto he adjusted to Figs. 12, 13, and 14 are respectively a plan, an end,and a side view of still another modification of the diamond fingers andtheir actuating mechanism. Figs. 15 and 16 are respectively a plan and aside view of the last modification of the diamond fingers in operationupon the leading end of the bag-blank which may be made in our machine.Fig. 17 represents a detail front sectional view of the side clips asthey are mounted to the carriers. Figs. 18 and 19 are respectivelydetail plan and front views of the tucker-plate and side nippers carriedthereby.

The bed of the machine may be of any suitable construction to supportthe paper-roll and the former, which may be of any wellknownconstruction, to form the tucked-paper tubing, and that bed is alsoadapted to support on its upper surface on the right-hand side the frame2O and on the left-hand side the frame 21, joined by the base-plate 22,and which are adapted to carry the various shafts and mechanisms.

Motion is communicated to the machine by the pulley 23 in the directionof the arrow 24, fastened upon the shaft 25, journaled crosswise in theframes 2O and 21 and which carries on the inner side of the frame 21 thegear 26, secured upon the shaft 25 and meshing into the gear 27,engaging the gear 28, fastened, respectively, on the shafts 29 and 30,placed crosswise of the machine, and also journaled in the frames 2O and21, and those shafts respectively carry the drawing-,rolls 31 and 32.The gear 26 also meshes into the gear 33 and that gear engages the gear34, which are respectively fastened on the shafts 35 and 36. The shafts35 and 36 respectively carry the conveyer-rolls 37 and theconveyersector 38. By the meansjust described the previously-severedbag-blank is drawn into the machine and delivered to the bottom-formingmechanisms to perform their respective functions, as will now bedescribed.

On the inner side of the frame 21 and fastened on the shaft 25, aspreviously stated, is the gear 26, which meshes into the cylinder-gear39, fastened to the cylinder-shaft 40, which is journaled crosswise tothe machine in the frames 2O and 21 and the bracket 41, the lattersecured to the base-plate 22. The frame 2O has a projecting bearing 2Oaand the bracket 41 has a projecting bearing 41, upon which thestationary cams are mounted for operating the various mechanisms, aswill be described later. The cylinder-shaft 40 has fastened thereto themutilated cylinder 42, having the mutilations or sector-like sections43, into which the supplemental carriers 44 are permitted to oscillate,and the tops or supporting-surfaces of the supplemental carriers formthe supplements of the mutilations of the cylinder. The normal positionofthe supplemental carriers is that position where the tops orfolding-surfaces of the carriers form the continuation of the cylinder.In the drawings two of these supplemental carriers are shown (indicatedby the same .nu-

meral 44) pivoted to the cylinder by the bushings 45. Adownward-projecting arm 46 of the carrier 44 is adapted to engage thestationary cam 47, which is mounted on the inwardly-projecting bearing2()n of the frame 2O and which is held in engagement with that cam bythe spring 48. The cam 47 is substantially of such shape that as thesupplemental carrier is caused to be carried around by the rotation ofthe cylinder the carrier is oscillated toward the center of the cylinderand immediately returned to its normal position. The supplementalcarriers are provided, with two pairs of bevel-edged side clips 50 and51, pivotally mounted on the shafts 52 and 53, supported in bosses 54and 55, which project downward and on either side of and beneath thefolding surface of the supplemental carriers. The side clips 50 and 51are held in a closed position upon the surface of the carrier by meansof the spring 56 and in an open position by means of the rolls 57 and 58acting upon the inner surfaces of the cams 59 and 60, which arerespectively mounted on the stationary bearings 2On and 41DM of theframe 20 and the bracket 41. The supplemental carrier is also providedwith the narrow front clip 61, which is held on a frame 62, the generalappearance IOO IIO

of which resembles a yoke, fastened on the the upper surface of thecarrier.

ing of the cam 65, which operates the front clip 61, and the timing ofthe cams 59 and 60, which cause to operate the side clips 50 and 51, inrelation tothe rotation of the cylinder and the severing of thebag-blank is such that the fron-t clip 61 is effectively closed by thepressure of the spring as the leading end of the tube advances and holdsthe lower ply of the tube thereto and the side clips 50 and 5l arecaused to enter between the tucks of the tube and hold the lower pliesof the tucks to The cam 47, which controls the oscillation of thecarrier, is of such shape that at this instant the carrier is broughttoward the center of the cylinder, and thereby enables the tucks of thetube to distend and to be refolded into the diamond form.

To aid and begin the formation of the diamond fold at the exactpredetermined points, we have arranged the diamond fingers 70 and 71, asbest shown in Figs. 12, 13, and 14, pivoted, respectively, on pivots 72and 73 on outwardlyprojecting lugs of the yokeshaped frame 62, and thosestuds are also provided with cam-arms 74E and 75, provided with rollerprojections, which engage the grooves in the arms 76 and 77. The arm 77has a downwardly-projecting branch 78, which engages the upper surfaceof the stationarily-mounted cam 79, supported on the bearing 20a. Acoil-spring S0 tends to draw the diamond iingers and 71 out ofengagement with the bagblank, and therefore the diamond lingers are intheir operative position during the time the branch 7S is in engagementwith the cam 79.

The diamond' fingers are hook-shaped and the defining or working edgesof the same are substantially in such a location that when in theirinner position of adjustment they form an angle of substantiallyforty-live degrees with the longitudinal median center line of thebag-blank, as indicated in Figs. 7, 9, 12, and 15.

In the general views, as in Figs. 1, 2, and f1, We have preferablyplaced the cam that operates the diamond fingers outside of thecylinder, and therefore one branch of the yokeshaped frame 62 issecurely held ona short shaft the outer end of which has connectedthereto the cam-arm 64a, engaging the cam 65a, which is mounted on theVbearing 41a.

Above the paper-bag blank is mounted the tucker-plate 82 in trunnions 83and 84, sup ported in the stationary frames 20 and 21 and capable ofbeing vibrated by means of the pinion-sector S5, which is located on theoutside of the frame 21 and securely fastened to the trunnion 84,meshing into the sector 86, which is pivoted on the stud 87, carryingthe upward-extending arm 88, having a projection 89 engaging acam-groove 90 of the cam 91, which is held on the shaft 92, and thatshaft is journaled for rotation in the frames 20 and 2l. A rotary motionis communicated to the shaft 92 by the gear 93, which meshes into thecylinder-gear 39, and that gear also meshes into the gear 94, which isheld on the shaft 95 and journaled in the frames 20 and 21. The gear 94Calso meshes into'the gear 96, fastened on the shaft 97, which supportsthe paste-roll 98, revolving in the paste-box 99 and which receives thepaste from the bottle 100. The paste-box 99 is properlysupported instuds 101 and 102, which project inwardly from the frame 21.

The vibrating tucker-plate is provided with two oppositely-disposedbevel-edged side nippers 103 and 104, pivotally mountedon pivots 105 and106 in the sleeves 107 and 108, which are adapted to receive alaterally-reciprocating motion by means of the grooved flanges on thesleeves 107 and 108, which are engaged by projections 109 of the arms110, pivoted on the stud 111, the lower ends of which are provided withthe projections 112 engaging grooves 113 in the cams 114. Thebevel-edged side nippers are bell-lever shaped and extend through slots115 in the trunnions 83 and 84, the latter being provided with engagingabutments 116 and 117, against which the bell-lever ends of thebevel-edged side nippers engage as the sleeves 107 and 108 are broughtto their inner adjustment, and whereby the bevel-edged side nippers areforced down upon the tucker-plate 82. The bevel-edged side nippers 103and 104 are thrown in open adjustment by means of the springs 118 and119, restingin recesses formed in the sleeves when the sleeves arethrust laterally outward. The inward motion of the arms 110 thusearries'the nippers in between the tucks of the tube and also closes andpresses the nippers on the tucker-plate, as clearly illustrated in Figs.1S and 19. The center line Aof the trunnions 83 and Se coincides with aline that passes through the two intersecting points formed by the edgesof the tube and the fortyve-degree edges of the nippers. The distancefrom the center line of the trunnions to the folding edge 822L of theer-plate 82 is substantially equal to the depth of the tucks, and thatfolding 4edge serves to define the primary transverse 'folding-lineacross the tubular blank as that IOO IIO

er-plate is vibrated, and the tubular blank is carried onward by therotation of the cylinder. The timing of the cam-grooves 113, that effectthe inward motion of the side nippers, and the timing of the cam-groove90, which causes to vibrate the tucker-plate S2, is in relation to therotation of the cylinder and the supplemental carriers carried thereby,with its clips, such that as the bottom- `forming end of the tube entersthe folding mechanism the tube is gripped by the grip pers to thesupplemental carriers and simultaneously the nippers enter the tucks andhold the upper plies of the tucks to the tuckerf plate. The supplementalcarrier as it is carried along by the cylinder is then caused to swingaway from the tucker-plate and simultaneously the tucker-plate is causedto vibrate at a rate of speed equal to the combined movement of thecarrier and the rotation of the cylinder, and in this manner the tucksof the tube are distended and unfolded into the well-known insidetriangular folds and the folding edge 82a of the tucker-plate definesthe primary transverse foldin g-line across the tube and converts thetubular blank into the diamond form.

As the supplemental carrier rocks from its lowest position back to thenormal position the formation of the diamond is then practicallycompleted; but itis pressed into its final proportions by theironing-plate 120, as will nowbe described. The ironing-plate 120 issecurely held on the arm 121., which is supported by the cross-shaft122, journaled in .complished as follows: The paste-sector 128 andcrosswise to the frames 2O and 21, and

which 'carries on the outside of the frame 21 the cam-arm 123, providedwith the projection 124, which engages the face of the cam 125. A Thespring 126 has one end fastened to the cam-arm 123 and the other endsecured to the frame 21, and thereby holds the projection 124 againstthe face of the cam 125, and the timing of that cam is such that whenthe diamond form is completed by the folding mechanism the ironing-plate120 is brought downward and presses and flattens the diamond-formedblank into its final proportionsV upon the carrier and the tucker-plate.After the diamond form is completed the diamond fingers and 71 arewithdrawn therefrom and the paste is applied by the paste-sector 128,mounted on the shaft 92, from the pastesegment 129, held on the shaft95, which has received the paste from the paste-roll 98, which revolvesin the paste-box 99.

The gears 93, 94, and 96 are so geared in relation to the cylinder-gear39 that the face of the paste-sector is presented to the cylinder twiceto each revolution of the cylinder, and in this manner the paste isdeposited upon each diamond-formed blank as it passes under thepaste-sector.

The folding of the rear and front ap is achas fastened thereto twocreaser-blades 130 and 131 at a distance apart measured on thecircumference of the paste-,sector equal to twice the depth of thetucks, which distance also corresponds with the distance between thetransverse creaser-grooves 132 and 133, which are grooved crosswise inthe supplemental carriers, the purpose of which we will describe laterin connection with the Hapfolding mechanism, which we will now describe.Mounted in the frame 2Q above the cylinder-shaft is the rear nap-folderarm 134, (best shown in Figs. 5 and 6,) which is mounted on the sleeve135, carrying on the outer side the sector-pinion 136, meshing into thesector 137, pivoted on the shaft 138, which is supported in the frame20, and that sector has the upwardly-extending arm 139, provided withthe projection 140, engaging a groove 141 in the cam 142. The rearflapfolder arm is provided on the upper side with the hub 134, servingas a bearing for the fin= ger 143, which is adapted to slidelongitudinally in the hub 134m, and thereby also adapted to be placedcrosswise over the surface of the cylinder. The in and outward movementof the finger 143 is accomplished by the following mechanism: The finger143 is provided with the pin 144, projecting through a slot 134b of thehub 134% and that pin is engaged by the bifurcated arm 145, pivoted onthe stud 146, which is supported on the arm 134. The lower end of thebifurcated lever-arm 145 is provided with a projection 147, engaging agroove in the collar 148, which is integral with the rod 149, which isadapted for longitudinal movement and mounted in the central opening ofthe sleeve 135. The outer end of the rod 149 is pivotally engaged to thearm 150, mounted on the stud 151, the downwardly-projecting arm 152 ofwhich is provided with the projection 153, engaging a groove in the cam154. By

the means just described the finger 143 receives a laterallyin-and-outward movement crosswise to the cylinder by means of the cam154 and its intermediate mechanisms, and also receives a vibratorymotion over the surface of the cylinder by means of the camgroove 141and its intermediate mechanism, the latter travel being indicated by thedashand-dot line 155 from the position shown in Fig. 1 to the positionmarked 156 of Fig. 1.

The front iiap is folded over by the mech anis'ms now to be described.Mounted in the frames 2O and 21 is the stud 157, upon which is mountedthe stationary folding-plate 158, of well-known construction, and abovethat plate is mounted the Hap-bar 159, also held in the frames 20 and 21and of usual construction.

As a convenient means for folding over the front fiap, we have shown thefolder-blade 160, mounted on the arm 161, supported on the shaft 162,which carries on the inner side of the frame 21 the arm 163, which isengaged by the connecting-rod 164, and which again is jointed to thecam-arm 165, pivoted on the stud 169, and that arm carries theprojection 166, engaging a groove 167 in the cam 168, which issecurelyfastened on the shaft 25.

The cylinder-gear 39 meshes into the gear 170, journaled on the shaft171, and that gear engages the gear 172, securelyfastened upon thefshaft173, meshing again into the gear 174, held on the shaft 175, and thoseshafts are journaled in the frames 2O and 21 and respectively carry thedelivery-rolls 176 and 177. The cylinder is provided with lugs 178,which carry the pivots 179, to which are fastened the retainers 180, theupper ends of which are substantially hook-shaped, as best shown inFigs. 1 and 4, and when the same are folded over the top of the carrierthe lower surface thereof is close to the carrier,but does not press onthe same, and they are substantially in that position where they aredirectly ahead of the creaser-groove 133. The lower ends of theretainers 180 have downwardly- IOC IIO

extending branches 181, which are adapted to engage grooves in the cams182 and 183, which are respectively mounted on the bearings 2Oa and 41of the frame 2O and the bracket 41.

After the diamond is completed the blank is carried onward under thepaste-sector 128 and the paste delivered to the bag. The creaserblades130 and 131 engage, respectively, with the creaser-grooves 132 and 133,creasing the bag at substantially those positions where the fiaps are tobe folded over, and the creaserblade 131 thereby causes the rear iiap tobe raised from the surface of the cylinder, at which time the finger 143is thrust behind the rear flap and immediately afterward the retainers180 are thrust into their inner position over the bottom of the bag andin front of the flap, and as the cylinder isV carried onward the finger143 is caused to be oscillated over the surface of the cylinder, therebyturning the rear flap against the retainers 180 down upon the bottom ofthe bag.

The cylinder is provided with a duplicate set of carriers andcooperating mechanism, as previously stated, which is not essential, butit is preferable on account of the enlarge ment of the cylinder' therebyobtained, which allows the use of larger cams on the sides of thecylinder, whereby easier motions are obtained to operate the variousmechanisms, and whereby a greater speed of the machine is effected, andit also does not require the bag to be bent around too small acircumference.

We will now describe some modifications of mechanisms that may beapplied to the hook-shaped diamond fingers without departing from thespirit and scope of our invention, and the first of those modificationsis represented in Figs. 7 and 8, which permits of a lateral adjustmentof the diamond iingers, whereas in Figs. 97 10, and 11 this modicationis shown with the diamond ngers adjusted laterally outward to enablethem to operate upon a larger size of bag. The diamond fingers and 7lare pivoted instuds 72 and 73, held in bearings 185, which are laterallyadjustable on the yoke-shaped frame. The shafts 72 and 73 are providedon their lower sides with cam-farms 186, which are adapted to engagespirally-cut cam-grooves in the cams 187, which are respectively cutright and left, so that any motionimparted thereto will effectivelythrow the diamond lingers 70 and 7l out of or into operative engagement.The cams 187 are fastened on the shaft 188, which is provided with thearm 189, engaging the cam 79, fastened on the bearing 41a of the bracket41.

Another modification is represented in front and side view in Figs. 15and 16, inwhich the narrow portion G1 of the front clip is made thickand is provided with two circular grooves adapted to receive thesemicircular diamond-fingers 70 and 71,which are provided with the studs190 and engaged by the connecting-rod 191, jointed to the arm 192 andfastened on the shaft 193, and that shaft is provided on its outer endwith the arm 194, engaging a cam 195, held on the bearing 20. Theyoke-shaped front clip is provided on the left-hand side with the shaft196,which has on its outer side the arm" 197, engaging a cam 198, whichis mounted on the stationary bearing 20a. The spring 199 tends to keepthe diamond ngers out of their operative position, whereas the cam 195throws the same into their operative position. Thesprings 200 brings thefront clip G1 down upon the surface of the carrier and the cam 198 tendsto bring the same back outof engagement with the carriers.

The operation of the machine is as follows: The paperis taken from theroll,folded around the former, and converted into a continuoustucked-paper tube of any construction well known in the art, and guidedinto the bite of the drawingrolls and severed into bag-blank lengths inany well-known manner, and the severed blanks are guided into the biteof the drawing-rolls'31 and 32, which deliver the blank to theconveyer-roll and the conveyersector 38. The bottom-forming end of thetube is then guided into the bottom-forming mechanism in such a mannerthat the same enters between the tucker-plate 82, provided with thebevel-edged side nippers 103 and 104, and the supplemental carrier 44,which is pivotally mounted to the cylinder 42, which is provided withthe front clip 61,-the two oppositely-disposed hook-shaped diamondfingers 70 and 71, mounted on the front clip, and the twooppositely-disposed bevel-edged side clips 50 and 51. The tube as itarrives at abou t the position as shown in Fig. 1 is clasped by theVfront clip 61, the same being carried onward by the cylinder andeffectively closed upon the surface thereof by virtue of the cam 65 andthe spring 66, thus holding the lower part of the tube to the carrier.Simultaneously the side clips 50 and 51 are effectively thrust betweenthe tucks of the tube and brought to their inner closed position, and asthe cylinder continues to rotate the supplemental carrieris swungawayfrom the tuckerplate and at the same time the tucker-plate isvibrated, the folding edge forming the characteristic primary transversefolding -line across the tubular blank and unfolding and forming thewell -known inside triangular folds and converting the tubular blankinto the diamond form. The ironing-plate is then broughtto its lowerdownward position, whereby the diamond is pressed into its finalproportions on the carrier andthe tuckerplate. The side nippers 193 and104 are then withdrawn, and directly afterward the diamond fingers 70and 71 are retracted and the bag-blank is carried under the paste-sector128 to receive the paste, and to which 'are attached the creaser-blades130 and 131, which respectively engage the transverse creasergrooves 132and 133 and crease the blank IOO IIO

' where the edges of the completed bag are to be located and facilitatethe subsequent folding operations. As the creaser-blade 131 cooperateswith the creaser-groove 133 the rear end of the diamond that forms therear flap is raised from the carrier and is immediately backed up bythefinger 143, thrust behind the flap. The retainers 180 are then broughtvto their inner position of adjustment, and the finger 143 is thencaused to be oscillated over the surface of the cylinder by means of thecam-groove 141 of the cam 142, thereby folding over the rear flapagainst the retainers upon the folded bottom of the blank. The frontclip 6l is then caused to be opened to its eXtreme backward position,thereby releasing the front end of the diamond, which permits the frontflap to spring outward and forward over and above the flap-bar 159 andagainst the folder-blade 1GO, and as at this point the folder-blade 160is moving with the speed of the cylinder downward it engages thebagblank at that position where the creaser 130 has creased thebag-blank in its coacting creaser-groove 132 until the bag-blank isdelivered between the stationary folding-plate 158 and the bar 159, intothe bite of the delivery-rolls 176 and 177, and the completed bag maythen be carried away by any suitable bands into a drier to be dried andafterward bound and packed for sale and use.

Having thus fully described our invention, what we claim, and Wish tosecure by Letters Patent, is-

1. The combination of a conveyer, an oscillating carrier, having itsforward end pivoted to the conveyer, mechanism to oscillate the carrierupon its pivot, the front clip pivoted to the conveyer, the diamondfingers pivoted to the front clip, and devices for oooperating with thecarrier during both parts of its oscillation and during its forwardmovement with the conveyer, to unfold a paper tube and refold it into apaper-bag blank.

2. The combination of a conveyer, an oscillating carrier pivoted to theconveyer, mechanisms to oscillate the carrier upon its pivot, the frontclip mounted on the conveyer, oppositely-disposed diamond fingersmounted on the front clip, a tucker-plate vibrating upon trunnions notsubstantially on a line with its defining edge, all cooperating duringthe forward movement of the conveyer, and during both parts of theoscillation of the carrier, and during the vibration of the tuckerplate,to unfold a paper tube and to refold it into a paper-bag blank.

3. The combination of a conveyer, an oscillating carrier pivoted to theconveyer, mechanisms to oscillate the carrier upon its pivot, devices tohold the lower ply of a tucked-paper tube upon the face of the carrier,consisting of the front clip, diamond fingers mounted on the front clip,adapted to enter the bottom-forming end of the tube, and the side clips,a tucker-plate vibrating upon trunnions, devices to hold the upper plyof a tucked-paper tube against the face of the tucker-plate between theline of its trunnions and the line of its defining edge, all cooperatingduring the forward movement of the conveyer and during both parts of theoscillation of the carrier, and during the forward vibration of thetuoker-plate, to unfold -a tucked-paper tube and to refold it into apaper-bag blank, having inwardly-inclined triangular folds.

4. A folding-bed adapted to support one side of a paper-bag blank, thefront clip mounted on that folding-bed, and adapted to swing forward andclasp the leading end of the bag-blank to the folding-bed, theoppositely-disposed diamond fingers mounted on the front clip andadapted to swing into the bag-blank into substantially that positionwhere each of the defining edges of the diamond fingers formsubstantially forty-five degrees with the central longitudinal medianline of the bag-blank, substantially as described.

5. A folding-bed adapted to support one side of a paper-bag blank, thefront clip mounted on that folding-bed, means for effectively closingthe front clip to hold the leading end of the bag-blank, theoppositelydisposed hook-shaped diamond fingers mounted on the frontclip, means for vibrating the diamond fingers and for swinging the sameinto the bag-blank into substantially such position that each of thedefining edges forms substantially forty-five degrees with the centrallongitudinal median line of the bag-blank.

6. A folding-bed adapted to support one side of the paper-bag blank, thefront clip mounted on that folding-bed, means for effectively closingthe front clip, to hold the leading end of the bag-blank, theoppositelydisposed hook-shaped diamond fingers mounted on the frontclip, means for vibrating'the diamond fingers and for swinging the sameinto the bag-blank into substantially that position where each of thedefining edges forms substantially forty-five degrees with the centrallongitudinal median line of the bag-blank; and means whereby thosefingers may be adjusted laterally, and thereby adapting them to varioussizes of bags.

IOO

IIO

7. The combination 'of the yoke-shaped fining edges ,of those diamondfingers eachv form substantially forty-five degrees with the centrallongitudinal median line of the bagblank, when in their operativeposition.

8. In a paper-bag machine,the combination of a conveyer, an oscillatingcarrier pivoted thereto, operating means to cause the same to oscillateand means to hold the lower part of the tubular blank thereto,consisting of the side clips, the front clip, the diamond iingersmounted on the front clip, the tuckerplate trunnioned in uprights andprovided With side nippers, operating means to cause the tucker-plate tovibrate, and means to close the nippers on the tucker-plate, all partsoombined and operating to distend and unfold the tucked-paper tube andform the inside triangular folds While the carrier oscillates, thetucker-plate defining the primary transverse line across the blank andthe diamond iingers forming the leading end of the diamond, the Wholeoperating to convert the blank into the diamond form While tlie blank iscarried onward by the conveyer, substantially as described.

9. In a paper-bag machine, the combination of a conveyer, the carrierpivotally mounted thereon, operating means to cause the same to beoscillated, the front clip, the oppositely-disposed hook-shaped diamondfingers, mounted on the front clip, the two oppositelybevel-edged sideclips arranged to hold the lower part of the tubular blank to thecarrier, the tucker-platc trunnioned in the uprights, and provided withthe side nippers, operating means to vibrate the tucker-plate, andoperating means to cause the side nippers to swing down upon thetucker-plate and hold the upper part of the tubular blank, all partscombined and operating to d istend and unfold the tubular blank to formthe inside triangular folds and the leading end of the diamond form bythe diamond fingers While the tucker-plate defines the primarytransverse folding-line across the blank, the Whole operating to convertthe tucked-paper tube into the diamond form, while the same is carriedonward by the conveyer, substantially as described.

10. In apaper-bag machine,the combination of the cylinder provided withthe mutilations, the carrierpivotally mounted ou the cylinder, means forimparting thereto an oscillatory motion, a front clip, theoppositely-disposed hook-shaped diamond fingers mounted on the frontclip, the two. oppositely-disposed bevel-ed ged side clips, thetucker-plate trunnioned in the uprights and provided with bevel-edgedside nippers, operating means to vibrate the tucker-plate so that thefolding edge travels with the combined movement of the cylinder and thecarrier, and While the diamond fingers are in their inner position ofadjustment, and while the defining edge of the tucker-plate defines theprimary transverse folding-line,substantially as described.

11. In a paper-bag machine, the combination of a foldingbed, devices tohold the lower plies of a tucked-paper tube to that foldingbed, thetucker-plate cooperating with that folding-bed, devices to hold theupper plies of the tucked-paper tube to the tucker-plate, the vibratingironing-plate to press the folded diamond into its final proportionsupon the folding-bed and the tucker-plate, substantially as described.

12. A folding-bed adapted to support a paper-bag blank, a foldingmechanism adapted to turn over the rear flap, consisting of the finger143 adapted to be thrustlaterally across the folding-bed back of therear flap and also adapted to be oscillated over the top surface of thefolding-bed, and at a rate faster than kthe rotation of the cylinder,for the purpose of turning over the rear flap upon the bagbottom,substantially as described.

13. A folding-bed adapted to support a papenbag blank, a foldingmechanism adapted to turn over the rear flap, consisting of the finger143 adapted to be thrust laterally across the folding-bed back of therear Iiap, and also adapted to be oscillated over the top surface of thefolding-bed, the retainers 180 adapted to be thrust overthe bag-bottomahead of the flap, all combined and operating substantially asdescribed.

14. A folding-bed adapted to supportapaper-bag blank, a foldingmechanism adapted to turn over the rear flap, consisting of the nger143,actuating mechanism Awhereby the finger is thrust laterally across thefolding bed behind the rear iiap, means for oscillating the linger overthe top surface of the folding-bed, the retainers 180, means foractuating the retainers, consistingof the stationary cams 182 and 183,all combined and operating in such a mannerthat the finger 143 is thrustbehind the rear flap, and then effectively turns that flap over upon thebottom of the bag against the retainers, substantially as described.

15. The combination of the arm 134, the finger 143 supported in the arm,the sectorpinion 13G, the sector 137, the cam 142, the bifurcated arm145, the rod 149, the arm 150 and the cam 154, all combined andoperating to thrust the finger laterally across the folding-bed behindthe rear flap, and then cause the same to be oscillated over the topsurface of the carriers, substantially as described.

EDVARD E. CLAUSSEN. GEORGE MORTSON. Witnesses: HENRY D. MILDEBERGER, JANETTE S. ELLsWoRTH.

IOO

IIO

